How to detect operating system on the client machine using JavaScript ?
To detect the operating system on the client machine, one can simply use navigator.appVersion or navigator.userAgent property.
The Navigator appVersion property is a read-only property and it returns a string which represents the version information of the browser.
Syntax
navigator.appVersion
Example 1: This example uses navigator.appVersion property to display the operating system name.
<!DOCTYPE html> <html> <head> <title> How to detect operating system on the client machine using JavaScript ? </title></head> <body style="text-align:center;"> <h1 style="color:green;">GeeksforGeeks</h1> <button ondblclick="operatingSytem()"> Return Operating System Name </button> <p id="OS"></p> <!-- Script to display the OS name --> <script> function operatingSytem() { var OSName="Unknown OS"; if (navigator.appVersion.indexOf("Win")!=-1) OSName="Windows"; if (navigator.appVersion.indexOf("Mac")!=-1) OSName="MacOS"; if (navigator.appVersion.indexOf("X11")!=-1) OSName="UNIX"; if (navigator.appVersion.indexOf("Linux")!=-1) OSName="Linux"; // Display the OS name document.getElementById("OS").innerHTML = OSName; } </script> </body> </html> |
Output:
- Before Click on the Button:
- After Click on the Button:
Example 2: This example uses navigator.appVersion property to display all the properties of the client machine.
<!DOCTYPE html> <html> <head> <title> How to detect operating system on the client machine using JavaScript ? </title></head> <body style="text-align:center;"> <h1 style="color:green;">GeeksforGeeks</h1> <button ondblclick="version()"> Return OS Version </button> <p id="OS"></p> <!-- Script to return OS details --> <script> function version() { var os = navigator.appVersion; // Display the OS details document.getElementById("OS").innerHTML = os; } </script> </body> </html> |
Output:
- Before Click on the Button:
- After Click on the Button:
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